function browserRedirect () {
    var sUserAgent = navigator.userAgent.toLowerCase()
    var bIsIpad = sUserAgent.match(/ipad/i) === 'ipad'
    var bIsIphoneOs = sUserAgent.match(/iphone os/i) === 'iphone os'
    var bIsMidp = sUserAgent.match(/midp/i) === 'midp'
    var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) === 'rv:1.2.3.4'
    var bIsUc = sUserAgent.match(/ucweb/i) === 'ucweb'
    var bIsAndroid = sUserAgent.match(/android/i) === 'android'
    var bIsCE = sUserAgent.match(/windows ce/i) === 'windows ce'
    var bIsWM = sUserAgent.match(/windows mobile/i) === 'windows mobile'
    if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
        return 'phone'
    } else {
        return 'pc'
    }
}
setRem()
window.addEventListener('orientationchange', setRem)
window.addEventListener('resize', setRem)
window.addEventListener('resize', setRem)
function setRem () {
    var html = document.querySelector('html')
    if (browserRedirect() === 'pc') {
        if (window.screen.width > 1360) {
            html.fontSize=750/100+"px"
        }
    }

}